<PRE><B>Question 344497</B>
t=sqrt(d)/4 where d is the distance

A. how long does it take a quarter dropped from a 35foot roof to reach the ground?
t = sqrt(35)/4 seconds
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B. If there are 5280 feet in one mile, how long would it take an object to fall 1-1/2 miles?
1.5 miles = 7920 feet
t = sqrt(7920)/4
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C. If it takes an object 5.9 seconds to fall d feet, how tall is the object?
If you mean it falls from the height of the object:
d = 16t^2 = 16*5.9^2
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